Brooks promised Roberts that he would be the first person to know the first tour date after the janitorial-service owner asked him the question during one of Brooks' final shows at the Wynn Las Vegas. Roberts posted the announcement on the website for his business, TurnKey Facility Maintenance, and his Twitter account, @TFMAndy.

Reached by phone Thursday evening, Roberts said Brooks did not reveal the date of the tour launch or the venue, though he expects that will be part of Tuesday's official announcement.

"He basically said at this time he couldn't tell me the date," Roberts told USA TODAY. "I believe he's going to announce the date and the venue tomorrow morning."

Roberts, who revealed the city at Children's HealthCare of Atlanta at Scottish Rite, an Atlanta children's hospital, said he spoke with Brooks for about five minutes, calling the singer "super-nice and super-easy to talk to."

Roberts said he plans to attend the opening-night concert, whenever that turns out to be: "Garth asked me if I'd be there, and I said absolutely. He said he'll be in touch."